This is the only post you need to master loop engineering, If you still feel overwhelmed with /loop - you'll want to save this. To be honest, prompt engineering is dead. Your only focus should be on mastering loop engineering. Here's the entire framework broken down: The old way vs the new way of prompting Old way: you prompt → AI responds → you check it → you reprompt → repeat. New way: you define the goal once. The AI tries something, checks its own work, fixes errors, tries again, and marks itself done. This only works now because Fable 5 and GPT-5.6 Sol are actually smart enough to self-correct. The 2 commands that matter for loop engineering → /goal: the mission. What you want achieved and the exact conditions for when it's done. → /loop: the interval. How often you want that mission repeated (every minute, hour, day). Inner loop vs outer loop (most people miss this) Inner loops: one mission, run internally. Example: "Audit my website like a $5K consultant. List 10 issues with severity, location, and a fix. Stop after 12 turns." - One task, self-corrected until done. Outer loop: a recurring job on a schedule. Examples: Scanning competitor channels every day, monitoring your niche on X - these run indefinitely, and self-improving each cycle. This is the absolute bare-bones of loop engineering, and if you have no clue where to start, just start with these two commands and a basic inner/outer loop framework. Pro tip: Prompt Claude: "Based on everything you know about me and my context, help me build one useful inner & outer loop for my daily work."(Miles Deutscher)